Heavy Cruiser

A Federation Fearless class Heavy Cruiser.

A Romulan Pvash class Heavy Cruiser.

In spacecraft classification, a heavy cruiser is a large multi-purpose starship. While the Federation considered their Constitution-class starships to be heavy cruisers in their heyday, the Klingons referred to the same vessel, in their terms, as a battle cruiser.

Federation Heavy Cruisers

• Fearless Class Heavy Cruiser